This architectural drawing is Details of A & B of plan of electric power distribution system. In this drawing dimensions of details A is 40x45. Electric power is generated in power plants. In most cases, power plants are placed far from the load centers. Hence, the transmission line is used to transmit power over a long distance.To reduce the transmission losses, high voltage power is used in a transmission line. And voltage level is reduced at the load center. The power is distributed to load by a distribution system. For more details and information download the drawing file.